Finding the Fourth Proportional to 141,204.09, 194,855.81 and 76,670.80
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Solution
The fourth proportional to 141,204.09, 194,855.81 and 76,670.80 is: 105,802.53
Step by Step Solution
- Step 1: Write the proportion equation
141,204.09 : 194,855.81 = 76,670.80 : x - Step 2: Convert to fraction form
141,204.09/194,855.81 = 76,670.80/x - Step 3: Cross multiply
141,204.09x = 194,855.81 × 76,670.80 - Step 4: Simplify right side
141,204.09x = 14,939,750,398.13 - Step 5: Solve for x
x = 14,939,750,398.13/141,204.09 - Step 6: Final answer
x = 105,802.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.